Substrate Integrated Waveguide Dual-Band and Wide-Stopband Bandpass Filters
Substrate Integrated Waveguide Dual-Band and Wide-Stopband Bandpass Filters
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DOI：
10.1109/lmwc.2018.2844103
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发表时间：
2018-08-01
影响因子：
3
通讯作者：
Mohan, Akhilesh
中科院分区：
文献类型：
--
作者：
Azad, Amit Ranjan;Mohan, Akhilesh
本文介绍了一种在单层衬底上实现的新型耦合结构及其在设计衬底集成波导（SIW）双波段和宽阻带带通滤波器中的应用。利用基片集成波导腔的TE 101和TE 102模设计了滤波器。通过调整耦合结构的尺寸，可以控制TE（101）和TE（102）模的耦合系数，从而可以设计宽阻带和双频带通滤波器。在双频滤波器的设计中，采用开槽线微扰来降低TE 102模的谐振频率，而对TE 101模的谐振频率影响不大。为了验证所提出的设计方法，两个基片集成波导带通滤波器（宽阻带和双频）的设计，制造和测量。
In this letter, a new coupling structure implemented on a single-layer substrate and its application to design substrate integrated waveguide (SIW) dual-band and wide-stopband bandpass filters are presented. The TE101 and the TE102 modes of SIW cavity are used to design the proposed filters. By adjusting the dimensions of the coupling structure, the coupling coefficients of TE(101 )and TE102 modes can he controlled that can be used to design wide-stopband and dual-band bandpass filters. In the dual-band filter design, a slotline perturbation is used to lower the resonant frequency of TE102 mode while it has little effect on TE101 mode. To validate the proposed design approach, two SIW bandpass filters (wide-stopband and dual-band) are designed, fabricated, and measured.